Question Paper from: IBPS Clerk Prelims 2016

The ratio of A’s age 3 years ago and B’s age 5 years ago is 4:5. If A is 4 years younger than B then what is the present age of B?

None of these

Solution:

Chapter Name: Problems on Ages

A = B – 4

$\frac{( B - 4 ) - 3}{B - 5}$ = $\frac{4}{5}$

5B - 5 = 4B - 20

5B - 4B = -20 +5

B = 15

A = 11

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